<template>
 <view class="goods-item">
          <!-- 左侧的盒子 -->
          <view class="goods-item-left">
           <radio :checked="goods.goods_state" color="C00000" v-if="showRadio" @click="radioClickHandler"></radio>
            <image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
          </view>
          <!-- 商品右侧信息区域 -->
          <view class="goods-item-right">
            <!-- 商品标题 -->
            <view class="goods-name">{{goods.goods_name}}</view>
            <view class="goods-info-box">
              <!-- 商品价格 -->
              <view class="goods-price">¥{{goods.goods_price | tofixed}}</view>
              <!-- 商品数量 -->
              <uni-number-box :min="1" :value="goods.goods_count" @change="numChangeHandler" v-if="showNum"></uni-number-box>
            </view>
          </view> 
    
      </view>
</template>

<script>
  export default {
    props:{
      goods:{
        type:Object,
        default:{},
      },
      //是否展示图片左侧的radio
      showRadio:{
        type:Boolean,
        //如果外界没有指定showradio属性的值，则默认不展示radio的组件
        default:false
      },
      //是否展示价格右侧的numberBox组件
      showNum:{
        type:Boolean,
        default:false,
      }
    },
    data() {
      return {
        //默认图片
        defaultPic:'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png',
      };
    },
    methods:{
      radioClickHandler(){
        //通过this.$emit()触发外界通过@绑定的radio-change事件，
        //同时把商品的Id和勾选状态作为参数传递给radio-change事件处理函数
        this.$emit('radio-change',{
          //商品id
          goods_id:this.goods.goods_id,
          //商品最新的勾选状态
          goods_state: !this.goods.goods_state
        })
      },
      numChangeHandler(val){
        this.$emit('num-change',{
          goods_id:this.goods.goods_id,
          goods_count:+val
        })
      },
    }
  }
</script>

<style lang="scss">
.goods-item{
  width: 750rpx;
  box-sizing: border-box;
  display: flex;
  padding: 10px 5px;
  border-bottom: 1px solid #f0f0f0;
.goods-item-left{
  margin-right: 5px;
  display: flex;
  justify-content: space-between;
  align-items: center;

.goods-pic{
  width: 100px;
  height: 100px;
  display: block;
 }
}
.goods-item-right{
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: space-between;
  .goods-name{
    font-size: 13px;
    }
    .goods-info-box{
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
  .goods-price{
    font-size: 16px;
    color: #c00000;
   }
 }
}
</style>